same problem with memory leakage here....
im running Slackware 10.0 kernel 2.4.26 with nvidia driver 1.0.6111 kde 3.2.3
My box is a p3 450 512Mb ram nvidia geforce 5200fx 128MB.
after a few hours running X my memory is all eaten up by the nvidia module...
only a reboot will clear things up, please fix this real soon cause its putting my system so unstable i have to reboot every 12H